Public water system record
United Water System
Serves an area of St. Martin Parish, LA · 4,446 people served
Federal records show 17 health-based violations and 6 monitoring/reporting issues for United Water System in the last ten years, including an unresolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 17
- Resolved
- 14
- Unresolved
- 3
- Any acute record
- No
- Monitoring issues, last 10 years
- 6
Key facts
- United Water System draws water from 2 wells.
- Highest measured level in the last 10 years: Arsenic, 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit), 2018.
- Most recent formal enforcement: compliance order (no penalty) by Louisiana, December 2018.
- Record on file since 2004, with 7 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 1,556 unknown out of 1,556 service lines.
Check whether United Water System serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Oct 1, 2022 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | May 24, 2022 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | May 24, 2022 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | May 24, 2022 |
Active
Enforcement action in place
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Apr 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jan 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Oct 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jul 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Apr 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
330 | Jan 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Oct 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jul 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Jan 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Oct 1, 2017 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jul 11, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Jul 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Apr 1, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Feb 19, 2021 | Resolved |
|
Public Notice
OTHER
|
Nov 4, 2017 |
Active
Enforcement action in place
|
|
Public Notice
OTHER
|
Nov 4, 2017 |
Active
Enforcement action in place
|
|
Lead and Copper Rule
Monitoring and reporting
|
Mar 17, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2016 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2016 | Resolved |
Full record since 2004
EPA's records for United Water System go back to 2004. Before October 19, 2016 they list 7 health-based violations (7 resolved) and 7 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 7 | 3 |
| 2010 to October 18, 2016 | 0 | 4 |
| October 19, 2016 to 2019 | 11 | 3 |
| 2020s | 6 | 1 |
Most recent health-based violation before October 19, 2016: Arsenic, began July 2009, Resolved.
Show all 7 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jul 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Apr 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jan 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Oct 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2006 | Resolved |
Enforcement actions
Louisiana regulators took 2 formal enforcement actions against United Water System between 2010 and 2018. The most recent was a compliance order (no penalty) in December 2018.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 5, 2018 | Louisiana | Compliance order (no penalty) | 16 violations (14 health-based): Arsenic, Public Notice, Groundwater Rule |
| May 10, 2010 | Louisiana | Compliance order (no penalty) | 4 violations (4 health-based): Arsenic |
What the violations mean
Arsenic
13 incidentsArsenic exceeded the federal limit
Long-term arsenic exposure is linked to cancer and cardiovascular effects
Groundwater Rule
3 incidentsThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Lead and Copper Rule
1 incidentThe system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
United Water System draws water from 2 wells.
Annual water quality report
United Water System must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Louisiana.
Certified drinking water labs by state EPA guidance for private wells